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Old Coal Storage Area <br /> An approximately one hundred fifty feet (150') long drainage ditch will be constructed from the <br /> southern portion of the Old Coal Storage area, south across Road A and down the inside portion <br /> of the road to the pond located outside of the first Road A switchback. <br /> The ditch will be triangular in shape. The ditch will have a minimum depth of eighteen inches <br /> (18") at its center. Side slopes will be no steeper than 3H:1 V. The ditch will have a gradient of <br /> no steeper than four percent (4%), except where it is located adjacent to Road A below the low <br /> water crossing, where its gradient will match that of Road A. <br /> A low water crossing will be constructed at the Road A crossing of this ditch in order that <br /> vehicular traffic may still access the upper portions of this road. This low water crossing shall be <br /> built, and paid for, under Task 7, Low Water Crossings. <br /> Rock Dump Channel <br /> An approximately three hundred and fifty feet (350') long drainage channel will be constructed on <br /> the Rock Dump in order to convey runoff from the top and north side of the facility to the large <br /> swale on the south side of the pile. PROJECT MANAGER will stake the location of the channel <br /> in the field prior to initiation of work. <br /> The channel will be trapezoidal in shape, having a two feet (2') bottom width and side slopes no <br /> steeper than 3H:1 V. The minimum depth of the channel shall be two feet (2') as measured from <br /> the bottom of the channel to the adjacent ground surface. <br /> NOTE that the Rock Dump Channel construction must be completed and seeded within the first <br /> ten (10) days after receipt of the Notice to Proceed. <br /> Measurement and Payment <br /> Channels will be measured to the nearest linear foot. Measurement for payment will consist of <br /> physically measuring the length of each channel installed. Payment for this task will be paid for <br /> at prices established in Item 7 A, B, C, D of the Bid Schedule per linear foot installed. Such <br /> payment shall be considered full compensation for all labor, materials, equipment and all other <br /> items necessary and incidental to the construction of the channels to the specifications, including <br /> furnishing and placing liners, and placement of topsoil, distribution of seed and provision and <br /> installation of fertilizer as directed and described in the specifications. Topsoil application and <br /> revegetation of the area outside the footprint of the perimeter liner, shall be made pursuant to <br /> Tasks 9 and 10, respectively. Payment will be as this task is completed and approved by the <br /> PROJECT MANAGER. Payment for this task will be made only for the unit prices shown under <br /> Item 7 A, B, C, D of the Bid Schedule. <br /> TASK 8 EARTH WORK <br /> The goal of this task is to create suitable land forms within the various portions of the Project <br /> Area (Map 3, Project Area). <br /> Coal Refuse Disposal Area <br /> In order to accomplish the desired landform, approximately 5,465 cubic yards of material will be <br /> cut from the outside margin of the second switchback of Road A (Map 3, Project Area). This <br /> north facing slope is located directly behind, or south of, the coal refuse disposal area. <br /> Excavation of this slope will generate material which will be pushed to the north, covering the <br /> 16 <br />